Why does a hormone elicit a response only with target cells?

They said i have got a sign of tuberculosis what should i do

Give examples of selective advantage of organism’s body part/organ

Adescription of a type of bio biotechnology (genetic engineering, cloning, or artificial section) one benefit or one risk for the individual (based on whether you are for or against it) one benefit or one risk for society (based on whether you are for or against it) one benefit or one risk for the environment (based on whether you are for or against it)